Step bin



FIG. 1 is a perspective view of a step bin, showing my new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a right-side elevation view thereof.

FIG. 5 is a front elevation view thereof.

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a left-side elevation view thereof.

The broken lines in the drawings represent portions of the step bin thatform no part of the claimed design.

CLAIM The ornamental design for a step bin, as shown and described.